S: (adj) unique (unique%3:00:00:specific:00) ((followed by `to') applying exclusively to a given category or condition or locality) "a species unique to Australia"
S: (adj) singular (singular%3:00:00:single:05), unique (unique%3:00:00:single:05) (the single one of its kind) "a singular example"; "the unique existing example of Donne's handwriting"; "a unique copy of an ancient manuscript"; "certain types of problems have unique solutions"
S: (adj) unique (unique%3:00:00:unusual:00) (highly unusual or rare but not the single instance) "spoke with a unique accent"; "had unique ability in raising funds"; "a frankness unique in literature"; "a unique dining experience"